GitLab

Currently we are intending to launch with the existing gallery icon.
This cl adds all the resolutions of the
* our app icon to our manifest.json
* the gallery icon to our resources file (media_app_resources.grd).

Points our app icons i.e. "system_assets/app_icon_*.png" to the
gallery icons.

When we add our own app icon b/141588875, we don't need to change
our manifest.json file. We would just need to:
* remove IDR_MEDIA_APP_GALLERY_ICON_*_PNG from media_app_resources.grd
* add resources for our app icon to our internal resource file
media_app_bundle_resources.grd.
* update our resource paths in media_app_ui.cc to point at our
resources from media_app_bundle_resources.grd (might need to do this
from the guest context).

or if we ship the icon to chromium just update
IDR_MEDIA_APP_GALLERY_ICON_*_PNG to point at the new icon location.

Note: some follow up work needed to get this working for rendering the
right resolution for the taskbar crbug/1110768.

Bug: b/161203411, 996088
Change-Id: I0988dbb3eaeb0eaf029c49a1643ceed85acd8715
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2325471
Commit-Queue: David Lei <dlei@google.com>
Reviewed-by: Trent Apted <tapted@chromium.org>
Cr-Commit-Position: refs/heads/master@{#792610}